This Ogee pattern has a step at the end of the concave portion of the curve. Using the optional 3/8" Bearing produces a profile with a fillet at the convex end of the curve. Use in a handheld or table-mounted router.#54112, diameter (D) 1-3/8, radius (r) 5/32, cutting Height (B) 1/2, shank (d) 1/2, overall length (L) 2-1/2, replacement bearing 47706, flutes 2, 54112 carbide Tipped Ogee fillet 5/32 radius x 1-3/8 dia x 1/2 x 1/2 inch Shank.